T-shirt is image of Japanese flag used on military ships(kyokujituki) and the kabuki's make-up.

hangoodmangraph
Kyokujituki is Japanese flag used on military ships.Kumadori is the kabuki's make-up.
This T-shirt is image of these.
http://hgmg.shop-pro.jp/?pid=50087763

produced by GRIDE design
http://grilabo.jp/